OPTICAL SOCKET
An socket assembly (100) comprises an optical socket (1) and an IC package (5) assembled to the optical socket (1), the optical socket (1) comprises an insulative housing (4) with a plurality of passageways (4110), a plurality of optic members (3) received in the passageways (4110) and a plurality of electrical contacts (2) received in the insulative housing (1). The optic member (3) comprises a waveguide (31) and a lens (32) at the end of the waveguide (31), the IC package (5) comprises a plurality of lenses (510) located at the bottom portion (51) thereof and a plurality of electrical conducts (512) located at peripheral thereof, the lens (510) are received in the passageway (4110) and the electrical conducts (512) connect with the electrical contacts (2).
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1. Field of the invention
The present invention relates to an optical socket, and more particularly to an optical socket for transmitting optical signal and electrical power simultaneously.
2. Description of the prior art
A conventional electrical connector for electrically connecting an IC package to a printed circuit board comprises an insulative housing and a plurality of contacts received therein to transmit signal and electrical current. The insulative housing comprises a bottom wall and sidewalls extending upwardly from the bottom wall. The bottom wall comprises a top surface and a bottom surface opposite to the top surface. The contacts are made of metal and each comprises a body portion, a contact portion extending beyond the top surface and a tail extending beyond the bottom surface. The body portion is positioned in the bottom wall to secure the contact in the insulative housing. The contact portion is used to contact with the pad of the IC package and the tail is used to contact with the pad of the printed circuit board. Thus, a good electrical connection is established between the IC package and the printed circuit board to transmit signal and electrical current.
The electrical connector becomes smaller and smaller and the number of the contacts becomes more and more. Thus, the heat produced by the electrical connector becomes more and more. The same time, the distance between the contacts becomes smaller and smaller, thus the electromagnetic interference becomes more and more serious. Another problem is the IC package presses the contact portion of the contact to touch the contact, if the contact portions are not in a same height, part of the contacts will not touch the IC package. The electrical connector will not function normally.
Therefore, it is needed to find a new socket assembly to overcome the problems mentioned above.
SUMMARY OF THE INVENTIONAccordingly, an object of the present invention is to provide an optical socket for transmitting optical signal and electrical power.
In order to achieve the object set forth, an socket assembly comprises an optical socket and an IC package assembled to the optical socket, the optical socket comprises an insulative housing with a plurality of passageways, a plurality of optic members received in the passageways and a plurality of electrical contacts received in the insulative housing. The optic member comprises a waveguide and a lens at the end of the waveguide, the IC package comprises a plurality of lenses located at the bottom portion thereof and a plurality of electrical conducts located at peripheral thereof, the lens are received in the passageway and the electrical conducts connect with the electrical contacts.
Reference will now be made to the drawings to describe the present invention in detail.
Referring to
Referring to
Referring to
Referring to
The IC package 5 is received in the receiving space 410 of the insulative housing 4. The lenses 510 are received in the passageways 4110 respectively, the electrical conducts 512 connect with the contact portion 23 of the electrical contacts 2 in the horizontal direction. The lens 32 of the optical member 3 is received in the hollow 61 of the printed circuit board 6 and the rear end 22 of the electrical contact 2 is received in the hole 62 of the printed circuit board 6. The rear end 22 of the electrical contact 2 received in the hole 62 of the printed circuit board 6 also can secure the optical socket 1 on the printed circuit board 6.
Although the present invention has been described with reference to particular embodiments, it is not to be construed as being limited thereto. Various alterations and modifications can be made to the embodiments without in any way departing from the scope or spirit of the present invention as defined in the appended claims.
Claims
1. An socket assembly, comprising:
- an optical socket comprising an insulative housing with a plurality of passageways, a plurality of optic members received in the passageways and a plurality of electrical contacts attached to the insulative housing, the optic members each comprising a waveguide and a lens at bottom end thereof; and
- an IC package comprising a plurality of lenses located at bottom portion thereof and a plurality of electrical contacts located at peripheral thereof, the lens being received in the passageway and the electrical conducts contacting with the electrical contacts.
2. The socket assembly as claimed in claim 1, wherein the electrical contact comprises a body portion located in the insulative housing, a contact portion extending from the body portion to contact with the electrical conduct of the IC package and a tail extending from the body portion, wherein the tail is located beyond the insulative housing.
3. The socket assembly as claimed in claim 2, wherein the electrical contact also comprises a head portion extending downwardly from the contact portion.
4. The socket assembly as claimed in claim 3, wherein the insulative housing comprises a bottom wall and a plurality of sidewalls extending upwardly from the bottom wall.
5. The socket assembly as claimed in claim 4, wherein the head portion is positioned o the sidewall.
6. The socket assembly as claimed in claim 5, wherein the sidewall comprises an upper surface and a recess depressed from the upper surface to the inner of the insulative housing, the head portion is located in the recess.
7. An optical socket for connecting an IC package to a printed circuit board, comprising:
- an insulative housing;
- a plurality of optic members received in the insulative housing and each comprising a waveguide and a lens at bottom end of the waveguide; and
- a plurality of electrical contacts located on periphery of the insulative housing and comprising a body portion located in the insulative housing, a tail extending downwardly from the body portion and a contact portion extending upwardly from the body portion.
8. The optical socket as claimed in claim 7, wherein the electrical contact also comprises a head portion extending downwardly from the contact portion.
9. The optical socket as claimed in claim 8, wherein the insulative housing comprises a bottom wall and a plurality of sidewalls extending from the bottom wall whereby forms a receiving space, and wherein the contact portion of the electrical contact extends into the receiving space.
10. The optical socket as claimed in claim 9, wherein the bottom wall comprises a top surface, a bottom surface opposite to the top surface, the top end of the waveguide is lower than the top surface of the insulative housing, the lens of the optic member is located beyond the bottom surface of the insulative housing.
11. An optical socket assembly for use with an IC (Integrated Circuit) package, comprising:
- a housing defining an upward receiving space surrounded by a bottom wall and a periphery wall for receiving said IC package therein;
- a plurality of optical members disposed in the bottom wall and arranged in matrix for confrontation with downwardly facing lenses of the IC package in a vertical direction;
- a plurality of electrical contacts dispersed on an interior face of said periphery wall for electrically connection with side terminals of the IC package via confrontation therebetween in a lateral direction perpendicular to said vertical direction.
12. The optical socket assembly as claimed in claim 11, further including a printed circuit board having an optical reception area upwardly confronting the optical members and an electrical reception area confronting the contacts which extend downwardly beyond a bottom face of the housing.
13. The optical socket assembly as claimed in claim 12, wherein said printed circuit board includes a plurality of recesses receiving corresponding optical members, respectively.
14. The optical socket assembly as claimed in claim 11, wherein said housing and said contacts are configured to allow said contacts to be only downwardly assembled to the housing.
Type: Application
Filed: Sep 15, 2010
Publication Date: Mar 15, 2012
Patent Grant number: 8452140
Applicant: HON HAI PRECISION INDUSTRY CO., LTD. (Tu-Cheng)
Inventors: CHENG-CHI YEH (Tu-Cheng), ANDREW CHENG (Tu-Cheng)
Application Number: 12/882,204